refine(daemon-update): taller card, unified info surface, tactile card polish

Design pass on the two-pane node updater:
- Taller card (a generous share of the window) so release notes get vertical
  room and usually don't need to scroll.
- Wrap the version header + release notes in ONE rounded Material surface (drop
  the divider between them); the notes markdown gets inner padding so it doesn't
  touch the edges, and the header stays pinned while long notes scroll within.
- The verify note + install button now sit OUTSIDE that surface; the install
  button is sized to its text instead of full width.
- Version cards: slightly smaller radius, accent bar removed, and the currently
  installed (active) node is marked with a check on the right of its card.
- Footer: dropped the divider above Close and enlarged the Close button.

Verified 100% + 150%, dark + light.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/ui/windows/daemon_download_dialog.h

@@ -104,7 +104,9 @@ public:
         ov.p_open = active ? nullptr : &s_open;
         ov.style = OverlayStyle::BlurFloat;
         ov.cardWidth  = 880.0f;
-        ov.cardHeight = 540.0f;
+        // Tall card (a generous share of the window) so the release notes get vertical room and
+        // usually don't need to scroll; the layout is GetContentRegionAvail-based, so it adapts.
+        ov.cardHeight = std::min(760.0f, ImGui::GetMainViewport()->Size.y * 0.84f / dp);
         ov.idSuffix   = "daemonupd";
         if (BeginOverlayDialog(ov)) {
             switch (p.state) {
@@ -226,11 +228,10 @@ private:
         ImFont* capF  = Type().caption();
 
         const bool showFooter = (p.state == St::ReleaseList);
-        // Budget the whole footer block — the Spacing + Separator + Spacing + button row and every
+        // Budget the footer block (a gap + the enlarged Close button, no divider) so the two-pane
-        // inter-item gap — so the two-pane body leaves exact room and nothing overflows the card.
+        // body leaves exact room and nothing overflows the card.
         const float footerH = showFooter
-            ? (ImGui::GetFrameHeightWithSpacing() + ImGui::GetStyle().ItemSpacing.y * 3.0f
+            ? (ImGui::GetFrameHeight() * 1.25f + ImGui::GetStyle().ItemSpacing.y * 2.0f + Layout::spacingSm())
-               + Layout::spacingSm() * 2.0f + 1.0f)
             : 0.0f;
         const float bodyH   = std::max(120.0f * dp, ImGui::GetContentRegionAvail().y - footerH);
         const float contentW = ImGui::GetContentRegionAvail().x;
@@ -248,9 +249,10 @@ private:
             ImGui::PushStyleColor(ImGuiCol_HeaderHovered, ImVec4(0, 0, 0, 0));
             ImGui::PushStyleColor(ImGuiCol_HeaderActive, ImVec4(0, 0, 0, 0));
             ImDrawList* mdl = ImGui::GetWindowDrawList();
+            ImFont* icoF = Type().iconSmall();
             const float rowH = Layout::spacingMd() * 2.0f + bodyF->LegacySize + Layout::spacingXs() + capF->LegacySize;
             const float rowW = ImGui::GetContentRegionAvail().x;
-            const float round = 10.0f * dp;
+            const float round = 8.0f * dp;
             for (int i = 0; i < (int)s_rows.size(); ++i) {
                 const ReleaseRow& r = s_rows[i];
                 ImGui::PushID(i);
@@ -270,11 +272,16 @@ private:
                 mdl->AddRectFilled(rmn, rmx, fill, round);
                 if (sel) mdl->AddRect(rmn, rmx, WithAlpha(Primary(), 150), round, 0, 1.6f * dp);
                 if (hov || held) ImGui::SetMouseCursor(ImGuiMouseCursor_Hand);
-                // Left accent bar (rounded), keyed to the version's status.
+                // Active-daemon marker: a check on the right edge for the currently-installed version.
-                ImU32 accent = r.installed ? Success() : (i == 0 ? Primary() : WithAlpha(OnSurface(), 70));
+                float rightLimit = rmx.x - Layout::spacingMd();
-                mdl->AddRectFilled(ImVec2(rmn.x + 4.0f * dp, rmn.y + 8.0f * dp),
+                if (r.installed) {
-                                   ImVec2(rmn.x + 7.0f * dp, rmx.y - 8.0f * dp), accent, 2.0f * dp);
+                    float cs = bodyF->LegacySize * 1.15f;
-                float x = rmn.x + Layout::spacingMd() + 5.0f * dp;
+                    ImVec2 cp(rmx.x - Layout::spacingMd() - cs, (rmn.y + rmx.y) * 0.5f - cs * 0.5f);
+                    mdl->AddText(icoF, cs, cp, Success(), ICON_MD_CHECK_CIRCLE);
+                    rightLimit = cp.x - Layout::spacingSm();
+                    if (hov || sel) Tooltip("%s", TR("daemon_update_active_tt"));
+                }
+                float x = rmn.x + Layout::spacingMd();
                 float tagY = rmn.y + Layout::spacingMd();
                 mdl->AddText(bodyF, bodyF->LegacySize, ImVec2(x, tagY),
                              r.hasAsset ? OnSurface() : OnSurfaceDisabled(), r.tag.c_str());
@@ -282,7 +289,7 @@ private:
                 float by = tagY + (bodyF->LegacySize - capF->LegacySize) * 0.5f;
                 auto badge = [&](const char* t, ImU32 c) {
                     float tw = capF->CalcTextSizeA(capF->LegacySize, FLT_MAX, 0, t).x;
-                    if (bx + tw > rmx.x - Layout::spacingSm()) return;   // no room: skip (long tag)
+                    if (bx + tw > rightLimit) return;   // no room: skip (long tag / active icon)
                     mdl->AddText(capF, capF->LegacySize, ImVec2(bx, by), c, t);
                     bx += tw + Layout::spacingSm();
                 };
@@ -316,14 +323,13 @@ private:
         }
         ImGui::EndChild();
 
-        // ---- Footer: Close (only while browsing; transient states carry their own actions) ----
+        // ---- Footer: Close (only while browsing; transient states carry their own actions). No
+        //      divider above it — a larger, right-aligned button reads as the modal-level dismiss. ----
         if (showFooter) {
             ImGui::Spacing();
-            ImGui::Separator();
+            const float bw = 170.0f * dp, bh = ImGui::GetFrameHeight() * 1.25f;
-            ImGui::Spacing();
-            const float bw = 130.0f * dp;
             ImGui::SetCursorPosX(ImGui::GetCursorPosX() + std::max(0.0f, ImGui::GetContentRegionAvail().x - bw));
-            if (TactileButton(TR("close"), ImVec2(bw, 0))) s_open = false;
+            if (TactileButton(TR("close"), ImVec2(bw, bh))) s_open = false;
         }
     }
 
@@ -335,75 +341,75 @@ private:
         const ReleaseRow& row = s_rows[s_sel];
         const std::string instCore = util::daemonVersionCore(s_installed_version);
         const bool haveInstalled = !instCore.empty();
-
-        // Header: version tag.
-        Type().text(TypeStyle::H6, rel.tag.c_str());
-
-        // Status line — installed / newer / older, colored.
-        if (row.installed) {
-            Type().textColored(TypeStyle::Subtitle2, Success(), TR("daemon_update_status_current"));
-        } else if (s_sel == 0) {
-            Type().textColored(TypeStyle::Subtitle2, Primary(),
-                haveInstalled ? TR("daemon_update_available") : TR("daemon_update_status_latest"));
-        } else if (haveInstalled) {
-            Type().textColored(TypeStyle::Subtitle2, Warning(), TR("daemon_update_status_older"));
-        } else {
-            Type().text(TypeStyle::Subtitle2, rel.name.empty() ? rel.tag.c_str() : rel.name.c_str());
-        }
-
-        // Meta: installed comparison + date.
-        const std::string installed = s_installed_version.empty() ? std::string(TR("xmrig_none"))
-                                                                   : s_installed_version;
-        ImGui::Spacing();
-        Type().textColored(TypeStyle::Caption, OnSurfaceMedium(), (std::string(TR("daemon_update_installed")) + " " + installed).c_str());
-        if (!row.date.empty())
-            Type().textColored(TypeStyle::Caption, OnSurfaceMedium(), (std::string(TR("daemon_update_released")) + " " + row.date).c_str());
-
-        ImGui::Spacing();
-        ImGui::Separator();
-        ImGui::Spacing();
-
-        // Reserve the bottom for the verify/downgrade note + the install button; notes fill the rest.
-        const float btnH = ImGui::GetFrameHeight();
         const bool downgrade = !row.installed && s_sel != 0 && haveInstalled;
+
         const char* noteStr = !row.hasAsset ? TR("upd_no_build_platform")
                             : downgrade      ? TR("daemon_update_downgrade_note")
                                              : TR("daemon_update_verify_note");
-        const float noteW = ImGui::GetContentRegionAvail().x;
-        const float noteH = ImGui::CalcTextSize(noteStr, nullptr, false, noteW).y;
-        const float reserve = noteH + btnH + Layout::spacingMd() * 2.0f;
-        // Notes fill whatever's left ABOVE the reserved verify-note + install button. If the pane is
-        // too short to fit a useful notes box, drop it entirely so the install button stays visible
-        // (never let a min-height notes child push the button into a scroll region).
-        const float roomForNotes = ImGui::GetContentRegionAvail().y - reserve;
-        if (roomForNotes >= 44.0f * dp) {
-            // Filled, rounded Material surface (no thin outline); notes rendered as markdown.
-            ImGui::PushStyleColor(ImGuiCol_ChildBg, WithAlpha(OnSurface(), 14));
-            ImGui::PushStyleVar(ImGuiStyleVar_ChildRounding, 12.0f * dp);
-            ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(Layout::spacingMd(), Layout::spacingMd()));
-            ImGui::BeginChild("##daemonNotes", ImVec2(0, roomForNotes), false);
-            {
-                const std::string notes = cleanNotes(rel.body);
-                if (notes.empty())
-                    Type().textColored(TypeStyle::Caption, OnSurfaceDisabled(), TR("daemon_update_no_notes"));
-                else
-                    RenderMarkdown(notes);
-            }
-            ImGui::EndChild();
-            ImGui::PopStyleVar(2);
-            ImGui::PopStyleColor();
-            ImGui::Spacing();
-        }
-
-        Type().textColored(TypeStyle::Caption, downgrade ? Warning() : OnSurfaceMedium(), noteStr);
-        ImGui::Spacing();
-
-        // Install button (full detail width).
         const char* label = row.installed ? TR("daemon_update_reinstall")
                           : (s_sel == 0)   ? TR("daemon_update_download_install")
                                            : TR("daemon_update_install_this");
+
+        // Reserve the bottom for the verify/downgrade note + the install button, so the info card
+        // fills the space above them.
+        const float btnH  = ImGui::GetFrameHeight() * 1.15f;
+        const float noteH = ImGui::CalcTextSize(noteStr, nullptr, false, ImGui::GetContentRegionAvail().x).y;
+        const float reserve = noteH + btnH + Layout::spacingMd() * 3.0f;
+        const float infoH = std::max(120.0f * dp, ImGui::GetContentRegionAvail().y - reserve);
+
+        // ---- Info card: ONE rounded Material surface wrapping the version header + release notes ----
+        ImGui::PushStyleColor(ImGuiCol_ChildBg, WithAlpha(OnSurface(), 14));
+        ImGui::PushStyleVar(ImGuiStyleVar_ChildRounding, 10.0f * dp);   // slightly smaller than the notes had
+        ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(Layout::spacingLg(), Layout::spacingMd()));
+        ImGui::BeginChild("##daemonInfo", ImVec2(0, infoH), false);
+        {
+            // Header (pinned): tag + status + installed/released — no divider, just a gap.
+            Type().text(TypeStyle::H6, rel.tag.c_str());
+            if (row.installed)
+                Type().textColored(TypeStyle::Subtitle2, Success(), TR("daemon_update_status_current"));
+            else if (s_sel == 0)
+                Type().textColored(TypeStyle::Subtitle2, Primary(),
+                    haveInstalled ? TR("daemon_update_available") : TR("daemon_update_status_latest"));
+            else if (haveInstalled)
+                Type().textColored(TypeStyle::Subtitle2, Warning(), TR("daemon_update_status_older"));
+            else
+                Type().text(TypeStyle::Subtitle2, rel.name.empty() ? rel.tag.c_str() : rel.name.c_str());
+
+            const std::string installed = s_installed_version.empty() ? std::string(TR("xmrig_none"))
+                                                                      : s_installed_version;
+            ImGui::Spacing();
+            Type().textColored(TypeStyle::Caption, OnSurfaceMedium(),
+                               (std::string(TR("daemon_update_installed")) + " " + installed).c_str());
+            if (!row.date.empty())
+                Type().textColored(TypeStyle::Caption, OnSurfaceMedium(),
+                                   (std::string(TR("daemon_update_released")) + " " + row.date).c_str());
+            ImGui::Dummy(ImVec2(0, Layout::spacingSm()));
+
+            // Notes: markdown, scrolls within the info card (header stays pinned above it). A little
+            // inner padding keeps the text off the surface edges.
+            const std::string notes = cleanNotes(rel.body);
+            ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(0, 0, 0, 0));
+            ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0, Layout::spacingXs()));
+            ImGui::BeginChild("##daemonNotes", ImVec2(0, std::max(0.0f, ImGui::GetContentRegionAvail().y)), false);
+            if (notes.empty())
+                Type().textColored(TypeStyle::Caption, OnSurfaceDisabled(), TR("daemon_update_no_notes"));
+            else
+                RenderMarkdown(notes, ImGui::GetContentRegionAvail().x - Layout::spacingSm());
+            ImGui::EndChild();
+            ImGui::PopStyleVar();
+            ImGui::PopStyleColor();
+        }
+        ImGui::EndChild();
+        ImGui::PopStyleVar(2);
+        ImGui::PopStyleColor();
+
+        // ---- Below the info card (outside the surface): verify note + install button ----
+        ImGui::Dummy(ImVec2(0, Layout::spacingSm()));
+        Type().textColored(TypeStyle::Caption, downgrade ? Warning() : OnSurfaceMedium(), noteStr);
+        ImGui::Spacing();
+        // Install button sized to its text (not the full pane width).
         ImGui::BeginDisabled(!row.hasAsset);
-        if (TactileButton(label, ImVec2(fullW(), 0))) startInstallSelected();
+        if (TactileButton(label, ImVec2(0.0f, btnH))) startInstallSelected();
         ImGui::EndDisabled();
     }
 

src/util/i18n.cpp

@@ -1488,6 +1488,7 @@ void I18n::loadBuiltinEnglish()
         strings_["daemon_update_released"]         = "Released:";
         strings_["daemon_update_no_notes"]         = "No release notes for this version.";
         strings_["daemon_update_install_this"]     = "Install this version";
+        strings_["daemon_update_active_tt"]        = "The currently installed (active) node";
 
         // --- Lite Network tab (server browser) ---
         strings_["lite_net_title"]        = "Lite Servers";